Ernie Ball Earthwood 80/20 Bronze Acoustic Guitar Strings are made from 80% copper, 20% zinc wire wrapped around hex shaped brass plated steel core wire. These acoustic guitar strings provide a crisp, ringing sound with pleasing overtones.
Gauges .012, .016, .024w, .032, .044, .054
CALIFORNIA PROPOSITION 65 WARNING http://www.p65warnings.ca.gov